MPE Home Metamath Proof Explorer < Previous   Next >
Nearby theorems
Mirrors  >  Home  >  MPE Home  >  Th. List  >  cn Structured version   Visualization version   GIF version

Syntax Definition cn 10775
Description: Extend class notation to include the class of positive integers.
Ref Expression
cn class

See definition df-nn 10776 for more information.

Colors of variables: wff setvar class
  Copyright terms: Public domain W3C validator